expireover: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/lib/news/bin/expireover - from package: inn2
/usr/lib/news/bin/expireover - from package: inn

You may install the required package with command apt-get install {package}

Error in other languages:
expireover: bevel nie gevind nie
expireover: comandă negăsită
expireover: comando não encontrado
expireover: commande introuvable
expireover: command not found
expireover: käsku ei ole
expireover: không tìm thấy lệnh
expireover: komanda nerasta
expireover: Kommando nicht gefunden.
expireover: kommandot finns inte
expireover: komut yok
expireover: nie znaleziono polecenia
expireover: níor aimsíodh an t-ordú
expireover: no se encontró la orden
expireover: no s'ha trobat l'ordre
expireover: opdracht niet gevonden
expireover: parancs nem található
expireover: perintah tidak ditemukan
expireover: príkaz nenájdený
expireover: příkaz nenalezen
expireover: команда не найдена
expireover: командата не е открита
expireover: 命令找不到
expireover: コマンドが見つかりません